1x1x2 RoadblockAlthough it tries to look like a 1x1x2 this puzzle is a 1x2x3.
1x1x4A stupid cuboid built just for the sake of completeness.
1x1x5A stupid cuboid built just for the sake of completeness.
1x2x2It is not a boob cube but a boob can solve this one too.
1x2x3A very simplistic cuboid but a must for completionists.
1x2x4A cuboid which can be viewed as combination of 1x2x2 and 1x2x3.
1x2x5A fully functional 1x2x5
1x2x7Another rather early case of cuboid going into large dimensions.